CN2562470Y

CN2562470Y - Buried low-voltage power cable distribution boxes

Info

Publication number: CN2562470Y
Application number: CN 00232256
Authority: CN
Inventors: 魏明星
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-27
Filing date: 2000-10-27
Publication date: 2003-07-23
Anticipated expiration: 2010-10-27

Abstract

An embedded low-voltage power cable branch box is provided, which comprises a box body, a wire sorter and a wiring terminal. The box body is divided into left and right chambers, with a seal ring being arranged at the junction between the left and right chambers and connected by fasteners. Lead-in tube ports and lead-out tube ports are arranged respectively on the two ends of the box body. The ratio in number of the lead-in tube ports to the lead-out tube ports are 1:N, wherein N is larger than or equal to 2. The lead-in tube port and the lead-out tube port each are provided with sealing filler chambers. The wire sorter is arranged inside the box body and is formed by a group of conductors which each have a lead-in interface and a plurality of lead-out interfaces and which are arranged on an insulating frame in a way that the lead-in interface faces towards the lead-in tube port and the lead-out interface faces towards the lead-out tube port, with lead-in/lead-out terminals being fastened inside the lead-in/lead-out interfaces.

Description

Bury formula lv power cable junction box underground

The utility model provides a kind of formula lv power cable junction box of burying underground, divides the device of family usefulness cable branch to the user especially for power transmission line.

Often relate to being connected of bus cable and many branch cables in the low-voltage power supply system, the low-voltage cable junction box is a main device of realizing above-mentioned connection.Existing low-voltage cable junction box is used on the ground mostly, and the house lead in junction box all adopts the mode that skin hangs usually.Facts have proved that this class junction box exists inconvenience to install and influence building shortcoming attractive in appearance, because of box body can not be anticorrosion and seal, deconcentrator is reasonable inadequately with being connected of binding post, can't be used for underground burying underground.

The purpose of this utility model provides a kind of formula of burying underground lv power cable junction box that enough decay resistances and good seal performance are arranged, and lays or the underground mounting means of burying underground with the appropriate cable ditch.

The technical solution of the utility model is: this formula lv power cable junction box of burying underground, comprise box body, binding post, box body divides left box body 1-1 and right box body 1-2, a left side, junction between right two box bodys is to be convenient to structure that both sealings are closed up, there are the inlet wire mouth of pipe 2 and the outlet mouth of pipe 3 in the box body two ends, the number of the inlet wire mouth of pipe and the outlet mouth of pipe is 1:N, N is more than or equal to 2, advance, the outlet mouth of pipe is equipped with the airtight and watertight padding chamber, so that sealing is installed, deconcentrator is housed in the box body, deconcentrator is that one group of group has an inlet wire interface and a plurality of conductor 4 that goes out line interface is contained on the insulation framework 5, inlet wire interface 4-1 goes out line interface 4-2 towards the outlet mouth of pipe 3 towards the inlet wire mouth of pipe 2, advances, outlet terminal 6-1,6-2 is fastened on respectively into, go out in the line interface.

The above-mentioned formula of burying underground lv power cable junction box, there are the inlet wire mouth of pipe 2 and the outlet mouth of pipe 3 in the box body two ends, its insulation framework 5 is made up of left and right two insulation boards, have the hole 5-1 that conductor 4 is installed on the insulation board, the hole 5-1 of two insulation boards about being inserted through respectively of conductor 4 two ends into and out of line interface, insulation board plane and turnover spool mouth.The axis normal of turnover line interface.

The above-mentioned formula of burying underground lv power cable junction box, it is the conical surface into and out of the line interface inwall, between this conical surface and binding post, be added with the Elastic Circular conical ring 7 of band opening, binding post one end inserts the Elastic Circular conical ring, there is screw thread to match into and out of the line interface outer wall with clamp nut 4-3, the favorable conductive contact so that binding post is combined closely with the turnover line interface, was realized in compressing Elastic Circular conical ring end when nut screwed.

Above-mentioned binding post one end has blind hole, and the other end is barred body 6-A, and barred body is and the fastening usefulness of turnover line interface that blind hole is the cable core patchhole.

The utility model has the advantages that rational in infrastructure, volume is little, easy construction, good insulation preformance, is particularly suitable for underground burying underground.This structure can one advances to have more any design, can also combine more, and its structure is constant, particularly adopt taper elastic ring and the fastening mode that compresses of nut between binding post and turnover line interface, make between binding post and the interface contact-making surface big, connect fasteningly, have the favorable conductive contact.Binding post one end has blind hole, and the other end is a barred body, and barred body is and the fastening usefulness of turnover line interface that blind hole is the cable core patchhole, changes the blind hole size, can adapt to the cable core of different size.

Below accompanying drawing is described:

Fig. 1 is that the utility model is that into three general structure schematic diagram, Fig. 2 that go out structure are that structural representation, the Fig. 3 of conductor 4 in the deconcentrator is that left view, Fig. 4 of conductor 4 is that insulation framework schematic diagram, Fig. 5 are that turnover line terminals schematic diagram, Fig. 6 are that Elastic Circular conical ring schematic diagram, Fig. 7 are that right view, Fig. 8 of Elastic Circular conical ring is the schematic diagram that turnover line interface 4-1,4-2 on the conductor 4 combine with binding post by Elastic Circular conical ring 7, clamp nut 4-3.1-1,1-2 are that box body, 1-3 are that sealing ring, 1-4 are fastening bolts, the 2nd among the figure, the inlet wire mouth of pipe, the 3rd, the outlet mouth of pipe, the 4th, the conductor in the deconcentrator, 4-1 be inlet wire interface, the 4-2 on the conductor be on the conductor go out line interface, 4-3 is a clamp nut, the 5th, insulation framework, 5-1 are that installing hole, 6-1, the 6-2 on the insulation framework is into and out of binding post, 6-A is the barred body, the 7th of binding post one end, the Elastic Circular conical ring.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing:

Box body is a vitals of realizing that conductive component is isolated from the outside, and box body is made up of left and right sides two parts, lays in order to the inside of conductive component, and the joint portion of two box bodys is provided with sealing ring 1-3, and clamping screw 1-4 is tightly connected two box bodys.The box body two ends are respectively equipped with cable into and out of the mouth of pipe 2,3., being provided with the airtight and watertight padding chamber into and out of the spool mouth, airtight and watertight padding is compressed by compacting part.

Deconcentrator is installed in the box body.Deconcentrator has an inlet wire interface to go out line interface and interconnective conductor 4 usefulness insulation framework and is connected and supports with a plurality of by many groups, with insulate between the maintenance group and and housing between insulation.Accompanying drawing provides is one group one and advances three schematic diagrames that go out structure, Elastic Circular conical ring 7 in conductor interface adopts the red copper material, compressing Elastic Circular conical ring end when clamp nut 4-3 screws, so as binding post with combine closely into and out of line interface, realize the favorable conductive contact.Also can be located at four end faces up and down into and out of the spool mouth, as long as change the shape of conductor and the structure of insulation framework.

Deconcentrator can be realized being connected of a cable bus and two or two above cable branch lines, i.e. " one-in-and-two-out " or " one advances to have more ", and can organize combination more.

The cable conductor heart yearn is connected by terminal 6-1,6-2 transition between the conductor interface with turnover.One end of terminal is provided with blind hole, the cable core conductor inserts in the blind hole, connect with the general mode of colding pressing, the other end of terminal is barred body 6-A, can directly insert in the hole of the Elastic Circular conical ring 7 in turnover conductor interface 4-1, the 4-2, by clamp nut locking, change the size of terminal blind hole, can realize the connection of the cable conductor of different cross section.

Claims

1, a kind of formula lv power cable junction box of burying underground, comprise box body, deconcentrator, binding post, it is characterized in that box body is made up of salable left box body (1-1) that closes up and right box body (1-2), there are the inlet wire mouth of pipe (2) and the outlet mouth of pipe (3) in the box body side, the number of the inlet wire mouth of pipe and the outlet mouth of pipe is 1:N, N is more than or equal to 2, advance, the outlet mouth of pipe is provided with the airtight and watertight padding chamber, deconcentrator is housed in the box body, deconcentrator is that one group of group has an inlet wire interface and a plurality of conductor (4) that goes out line interface is contained on the insulation framework (5), inlet wire interface (4-1) is towards the inlet wire mouth of pipe (2), go out line interface (4-2) towards the outlet mouth of pipe (3), advance, outlet terminal (6-1), (6-2) be fastened on respectively into, go out in the line interface.

2, the formula lv power cable junction box of burying underground according to claim 1, it is characterized in that there are the inlet wire mouth of pipe (2) and the outlet mouth of pipe (3) in the box body two ends, insulation framework (5) is made up of left and right two insulation boards, have the hole (5-1) that conductor (4) is installed on the insulation board, the hole (5-1) of two insulation boards about the turnover line interface at conductor (4) two ends inserts respectively, insulation board plane and the axis normal that passes in and out spool mouth, turnover line interface.

3, the formula lv power cable junction box of burying underground according to claim 1 and 2, it is characterized in that passing in and out the line interface inwall is the conical surface, between this conical surface and binding post, be added with the Elastic Circular conical ring (7) of band opening, binding post one end inserts the Elastic Circular conical ring, turnover line interface outer wall has screw thread to match with clamp nut (4-3), compressing Elastic Circular conical ring end when nut screws.

4, the formula lv power cable junction box of burying underground according to claim 1 and 2 is characterized in that binding post one end has blind hole, and the other end is barred body 6-A, and barred body is and the fastening usefulness of turnover line interface that blind hole is the cable core patchhole.